Mechanical acceleration sensor

Details Mechanical acceleration sensor Mechanical acceleration sensor

1994-01-18

1995-10-17

Williams, Hezron E.

Measuring and testing

Speed, velocity, or acceleration

Structural installation or mounting means

280806, G01P 102

Patent

active

054579910

ABSTRACT:
A mechanical acceleration sensor includes a weight, a latch lever, and a spring-loaded firing pin, which are movably supported in a casing. The latch lever is disengaged from the firing pin by inertial movement of the weight relative to the casing, thereby allowing the firing pin to perform a percussive firing action by the spring load. The weight is supported in the casing by a pair of first and second guide members for guiding the inertial movement of the weight. The first guide member is closely fitted in the weight, while the second guide member is loosely fitted in the weight. An error in parallelism between the first and second guide members is accommodated by the loose fitting of the second guide member. When sensing excessive acceleration, the weight effectively moves without interference with other members while only slightly rotating about the axis of the first guide member to absorb the error in parallelism.

REFERENCES:
patent: 2332994 (1943-10-01), Draper
patent: 3593277 (1971-07-01), Faude
patent: 4864086 (1989-09-01), Akiyama et al.

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